Scrubber machine



FIG. 1 is a left, frontal perspective view of a scrubber machine showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a back elevational view thereof.

The fragmentary showing of a floor in FIG. 1 is for illustration only and forms no part of the claimed design. 

The ornamental design for a scrubber machine, as shown and described. 